/Engine/Plugins/Experimental/Water/Source/Runtime/Public/WaterQuadTree.h
Add water body render data to this tree. Returns the index in the array. Use this index to add tiles with this water body to the tree, see AddWaterTilesInsideBounds(..)
uint32 AddWaterBodyRenderData ( const [FWaterBodyRenderData](API\Plugins\Water\FWaterBodyRenderData) & InWaterBodyRenderData )